Improvement in tension-regulators for spindle-driving bands



z sheefis Sheet 1. GJDRAVPER. TENSION-REGULATORS FOR SPINDLE-DRIVI'NG BANDS. No. 186,326.

Patented Jan. 16, 1877.

Waileases,

I ww-w MPHERS, PHGTO-UTHOGMFHEB, WASHINGTON. Dv-O.

, ZSheets-SheetZ.

G/DRA'PER. TENSION-REGULATORS FOB. SPINDLE-DRIVING suns. No.185,3Z6. Patented Ian. 16, .1877.

iiiiiiiiiiw UNITED STATES PATENT QFF'ICE.

5 GEORGE DRAPER, ornoPEnALE, MAssAonusjnTTs.

iiirtovrmrurjm TENSION-REGULATORS rons'rmo r omvme VBANDS.

Specificationi'orming, of. Letters Patent No. 186,326, dated January 16, 1877.; application filed I Octobers2, l876.

To allwhomlt'tmay concern. L. v Be it knownuthatl, GEORGE 'IDRAPEB, of

Hopedale, in the county of .Worce'ster and- State of Massachusetts, have invented an Iinare too tight. In ordinary ring-spinning frames each spindle is driven bya separate band. The ordinary banding used is of suchnature that it expands and contracts according to-the state of the atmosphere, and, as applied, is apt to become loose from other causes.

When a band is too loose, the yarnspun upon the spindle driven by it is spelled, and this being well known, the operators, in adj usting the bands, always aim to put them on sufficiently tight to drive the spindles without slippage, and in so doing they'commonly band the spindles too tight, which is also a serious evil, for thereby much more power is required to drive the spindles, and the spindles, bolsters, and steps are worn out much more rapidly, and it is necessary to lubricate the spindles and bearings oftener, to keep them in condition to run properly for the formation of good yarn.

I have discovered, by experiment, that a lateral pull of about two pounds on each spindie is about the force which each band should exert to properly drive the spindle of an ordinary ring-frame. I have also ascertained that it is not uncommon in putting on new bands to put them on sufficiently tight to exert a lateral pull of from eight to ten pounds upon each spindle, and that the average lateral pull of most of the bands now running is not less than from four to five pounds on each spindle, or more than twice the amount substantially necessary to properly drive them.

In this invention I arrange above the bands front. views of the guides or stands.

is a detail, showing the tension regulators-applied as I prefer to apply them; Fig. 6, a

. construction.

drive the spindles at all times.

- Figure .1 represents-a top view ofpart of aspinning-frame, illustrating the application of, my invention thereto, the twoopposite sides of the frame being shown merely to indicate, the exact position of the parts at both sides 7 of the frame. Fig. 2 is a vertical section on line mm, Fig. 1-. Figs. 3 and 4= are .edge and modification of tensionregulator; and Fig. 7 is a modified form of ban 1 z In the drawing, the frame a,;spindle-driving drum 1), bands 0, spindles d, footsteps-e, and bolsters f are or may be of any usual Each spindle is, or it may be two adjacent spindles are, driven-by an inde- Above the line of bands I 1 pendent band, 0. place a series of guides or stands, g, attached, preferably adjustably, in any suitable manner,

to a support, h, which, in this instance, is a},

rod adapted to extend across the frame near its upper part. The lower ends of these guides or stands are slotted, as seen at Fig. 3, to receive the (preferably small) steel pivots or ends i of the spool-like tension-regulators j, composed preferably of two annularly grooved heads connected by an axle. These tensionregulators are preferably made of wood, and the heads are separated far enough to permit the regulator to extend over one or two bands, preferably two, for one stand can thus support the ends of two regulators. The edges of the guides or stands will preferably be supplied with bearing portions k, of wood, rawhide, or equivalent material, to avoid lubricating the pivots turning in contact with the portions 2 2 of the bearing portions.

In Fig.1 the upper portions of the band 0 are shown as extending from the drum to the spindle in substantially a straight line, while the lower portions are oblique to the drum; but similar bands (marked 0) on the other side of the frame, and driven by the drum, would run with their oblique portions extending from the top of the drum instead of the bottom.

Ihe tension-regulators in Fig. I extend over 1 one-baud, each regulator resting on two bands. Theaxle of the tensionrregulator or adjuster Fig. 1,) or they maybe otherwise suitably held.

In Fig. 5 1 show a detail of handing, with tension-adjusters applied and extended over two bands, and in such case one stand, slotted at it'sopposite edges, as in Fig. 4, will act to guide the pivots at the adjacent ends of twotension-adjusters. T heannular-grooved heads of the tei'ision-adjusters ,rest upon and'turn o I with the bands, the guides or stands preventing them from moving forwardor backward.

Besides keeping the bands at their proper tension,,the hands, by this plan, may be made to" draw more upon the wharves attheir smallest portions. Instead of hearing on. the upper portion of the bands, the adjusters may be pressed or borne upward'against the lower portions of'the bands; but I prefer to have them rest upon the hands by simpl y their own f weight. Instead of having tension-adj usterswith two heads or disks, I may employ them having but one head, as shown in Fig. 6, and at-right of Fig. 1. e In Fig. 7 Ishow aform of banding in which one band drives two adjacent spindles. My tensionadjusters or regulators a band.

re equally applicable to this form of A tension-regulator adapted to bear upon Y two bands simultaneously acts to equalize the power applied to "the two different spindles,

in case more power is required to drive one than the other; or, in case one band has a tendency to move faster than the other, the regulator will act to equalize their speeds.

By constructing the regulator in this'way it 'is possible to decrease the number. of regulators, stands, and pivots one-half.

V, Ivam aware that what are called binders or tighteners are in common use on belts, and thatthey are also employed to take up long bands'for driving-spindles and other parts of machinery; but such binders have hearings in boxes requiring lubrication, which would render them useless for my purpose, while my tension-regulators are loosely held, running in slots in stands or supports soconstructed as to render lubrication unnecessary.

I claim- 1. In a spinning-frame provided with separate bands, as described, toconnect one or two spindles andthe spindle-driving drum, the combination, with the bands, of independent rotating loosely-held tension regulators or adjuste'r's, adapted to bear against and turn with the bands, substantially as and for the purpose described. V 2. The adjustablestands or guides, each slotted on two faces, as set forth, in combination with the'tension regulators or adjusters, adapted to operate upon the bands, substantiallyas described. j

3. The combination, with two independent bands, of .a single tensionregulator adapted to ride upon bothbands, substantially as described.

In testimony whereof I have signed my name to this 'specificationin the presence of two subscribing witnesses.

, GEORGE DRAPER. Witnesses: p

' V, G. W. 'GREG0RY,

' W; J. PRATT. 

